Lock



s. SEGAL Jan. 19, 1 954 LOCK 2 Sheets-Sheet 1 Filed May 1'7, 1950 Mag 7INVENTOR SAMUEL SEGAL @zflwi ATTURNEY S. SEGAL Jan. 19, 1954 LOCK 2Sheets-Sheet 2 Filed May 17, 1950 INVENTOR SA MUE'L SEGAL ATTOR N EYPatented Jan. 19, 1954 UNITED STATES? PATENT OFFlCE aeeaesr SamuelSegal; New York, N. Y. np ieat enfMarLb. ,Ser a 62 45 i Claims. (01.292-159) This invention relates to locksrparticularly to.

either the lockstructure or keeper is movable. relative to the other, itfrequently happens, thatv the. bolts have been inadvertently. broughteither partially or fully into lockingv position before. the lockstructure and keeper have. been brought, into operative or closerelation; and. when this occurs, the keeper engages the bolts, withdamag; ing effects. This is a common occurrence inthey type of lock inwhich bolts must be positively manipulated both into their locked andunlocked positions, as in" the said, Segal type of lock, especially wheneither the lock or keeper is ona sliding door. In such a case, thekeeper may'ina advertently be brought forcibly intov engagement with thepartially or fully closed bolts, there being direct impact in adirection normalfto the-path of movement of the bolts. It has. beenfound that under such circumstances the boltsand their mountings becomebent or otherwise mutilated, requiring either a repair job. or theentire. re placement of the bolt mechanism.

It. is accordingly primarily within the com templation of my inventionto obviate the dangers aforementioned in Segal looks. and otherssimilarly constructed, by providing ayieldable.v structure. which willpermit the bolts to-movein the, direction of the impact, that is, atright angles to,

their normal path, thereby preventing damage thereto. And in thisaspectof my invention'it is.

an important object to enable this. action to. oc

cur when the bolts are in a. partially lockedposie by a helical spring,in place of the convent lqnal' leaf or wire spring, and whereby it willhaye'the.

further advantage of enabling the said spring together with othersimilar springs to be readily assembled with a minimum of effort.

' Still another object. of my invention is to provide, ina device of theabove mentioned class, a; movable. guard member coactively. associatedwith the bolt members, to prevent the insertion of a wire or otherimplement for disengaging the tumbler while the; device is in, itslocked condition.

And; it is within my contemplation to provide a device capable ofperforming the objectives here:v in mentioned and yet, that, is simpleto operate, positive in action, and inexpensive to fabricate.

Other objects, features and advantages will, appear from the drawingsand the description h rei after i e R er i o he. r w n s.

Figure 1' is a rear view ofv a lock according to a preferred form of myinvention, with. the rear plate removed, showing the belts, in theirlocked positions, but with the tumbler retracted and, theknob-actuated'bar in a position just prior to. that of opening the lock.

Figure 2 is a section ofFigure 1 taken along. line 2.2.'

Figure 3 is a front view ofjthe 1,0ck,'v vith a portion of'the frontcasing removed for purposes of clarity, showing the bolts in their openposition.

Figure 4 is a, front view of a lock, substantially like that of Figure3; but showing the lock attached to a framework, and the keeper attachedto a sliding door, the bolts. being shown in a partially lockedposition, and the door being shown spaced from the lock and movingtoward the lock.

Figure 5, is'a View like Figure 4, but showing the door closer to'thelock and the ears of the keeper in engagement with the bolts, said boltsand the mounting therefor being shown in. a partially retractedposition.

Figure 6"is an enlarged rear view substantially like Figure 1,,butshowing the engagement of the ears of the keeper with the bolts when intheir fully locked position, the knob-actuated arms 3 andcoactingspringbeing shown by dot-dash lines in normal position.

Figure 7' is a fragmentary section of Figure 6 taken substantiallyalongline ll.

Figure 8" is a section of Figure 6 taken along line 88i l Figure 9- is afragmentary section of Figure 6 taken along line 9----& thereof.

Figure 10 is a perspective view of the slidable bolt carriage and boltassembly, with the bolt elements and pins in a partially retractedposition, and

Figure 11 is a fragmentary perspective of a portion of the casingshowing the slotted boss adapted to receive the rear cover of the device3 and to permit the movement therepast of a pin on the bolt mountingduring its operative retraction.

In the preferred embodiment of my invention illustrated in the drawing,the lock comprises a casing l5 having apertured extensions i5 thereonfor attaching the lock to the structure ll. The arrangement is such thatthe fasteners it which extend through the extensions are disposedoutside of the casing and do not interfere with the interior mechanismthereof as is the case in many conventional constructions; and becauseof this construction, the entire unit can readily be detached withoutdisassembling the lock.

The casing contains the hollow end loops l9 and 2d and a perforated loop21 therebetween, providing spaces 22 and 23 for accommodatingtherebetween the ears 24 and 25, respectively, of the keeper 23 mountedon the sliding door 21. The lock mechanism is provided with spaced bolts28 and 29 which are movable transversely relati-ve to said spaces 22 and23, in conventional manner, so that when the ears 24 and 25 are incoactive alignment with loops I9, 20 and 2 i, the said bolts will be ininterlocking engagement with said ears to hold the keeper and lockcasing together.

The said bolts 28 and 29 are mounted upon arms and 3| extending at rightangles from the slidable bolt base 32, said base being disposed, whenthe bolts are in their locked position, within the front recess 33 inthe side wall 3 of the casing. The said base contains the extension 35which serves as a guard covering the adjacent portion of the recess 33in wall 34. The arrangement is hence such, as will become more clearlyapparent hereinafter, as to constitute an obstructing member to preventa wire or other implement from being inserted through recess 33 into thecasing for disengaging the tumbler from its locking position.

Afiixed to base 32 are the two spaced pins 33 and 37, these extendingoppositely from arms 30 and 3!, and being slidably mounted within theapertures 38 and 39, respectively, extending through the slidable boltcarriage 4i). Mounted over said pins are the helical springs 4| and 42,these extending, into the respective cavities 43 and as in carriage andbeing in abutment with the respective shoulders 45 and 46 constitutingthe innermost walls of said cavities. It is thus apparent that springs Mand 42 of maximum length are provided, so that they may adequately becapable of absorbing the shock of impact between the keeper and theinadvertently closed bolts.

Extending from the carriage 40 is the slide bar 8 l, disposed betweenthe pins 36 and 31 and parallel thereto, said bar being preferably ofpolygonal cross section and being in slidable engagement with the recess82 disposed at the front medial portion of the bolt base 32. Thearrangement is hence such, as will hereinafter more clearly appear, thatthe base 32, together with the bolts 28 and 29 carried thereby, may beoperatively retracted against the action of said springs ll and 32towards the carriage 40.

Protruding beyond the rear surface 41 of the carriage 49 is the pivotalmounting 48 for the tumbler 49, the latter containing the lip 50intermediate its ends and in substantial registry with the slot Si incarriage member 40. Extending inwardly from floor 52 of the slot intothe body of the carriage is the cavity 53 which contains therein thehelical spring 54 in yieldable abutment with the said lip 5t.Substantially in the region of the extremity of tumbler 49, opposite thepivotal mounting M3, is the looking extension 55, the locking surface 55thereof being in abutment (Figure 6) with the adjacent surface of boss51. The said boss contains a threaded hole 58 therein for receiving thescrew 59 (Figure 8) attaching the rear plate to the interior of thecasing. The said boss also con-- tains the slotted portion 6i adapted topermit the said pin 31 to move therepast when the bolts and theassociated parts are retracted under the force of an impact, as willmore clearly hereinafter appear.

The casing is provided with a conventional knob 62 operatively connectedto a ring 63 from which extend the diametrically opposite actuating arms64 and 65, these arms (together with the connected knob). being normallyurged by spring 66, mounted at 51, into the dot-dash positions shown inFigure 6, whereby said arms are normally out of engagement with thetumbler. Although only a knob 62 is shown operatively connected with theactuating arms 55: and 55, it is understood that other conventionalmeans may also be employed, such as a key-operating cylinder that may beconnected to said arms in a manner well known to those skilled in theart. The showing of such a cylinder has been omitted, since it is notnecessary for the understanding of the present invention.

Flanking the slot 5i are the extensions 53 and 69, these containing thebevelled guide walls it and II respectively, the lateral walls l2 and itof the slot 5| merging with said extensions 62 and 69. Said bevelledsurfaces it and I i are so proportioned that they will accommodatetherealong the arm 65 when it is rotatively actuated into engagingposition with the lip 563, as will hereinafter appear.

The inner surface of the front wall M of the casing contains the twotracks 15 and it, these being spaced to accommodate therebetween theextension 7'! of the carriage 40, the edges '13 and '19 being inslidable engagement with the said tracks 15 and 16, respectively,whereby the carriage 40 and its associated parts may be slidabiyactuated transversely of the casing to bring the bolts 28 and 29 intolocking and unlocking positions, as will more clearly hereinafterappear.

When the bolts are in their locked position, as is indicated in Figure 6(regardless of whether or not said bolts have been retracted due totheir engagement with the ears 24 and 25) the locking extension 55 is inengagement with the boss 51, making it impossible for the carriage 48 tomove upwardly to its unlocking position. If it is desired to unlock thedoor, the knob 62 is operatively manipulated to swing the arm 65 in thedirection of arrow A (Figure 6) and when this movement continues, saidarm will engage the lip (Figure 1) and cause a pivotal retraction oftumbler 49 against the action of spring 5%, there by freeing extension55 from the boss 5?. A continued movement of the arm 65 in the directionof arrow B (Figure 1) will cause said arm to engage wall 12 of theextension 65, thereby moving the entire carriage 4B upwardly along thetracks 15 and 16. When the carriage reaches its extreme position underthe influence of the actuating arm 65, such as in the position of Figure3, the arm will clear extension 68,. to return to its normal positionunder the influence of spring 66. The movement of carriage 4G swamcauses its associated part to move: correspondingly with it,'the pins 3tand 31. and the bar 8t carrying the base 32 and bolts 28 and. 29. intoopen position. To look. the mechanism the reverse operation isperformed, in obvious manner.

Figure 5 illustratesthe operation of this device when there is. aninadvertent engagementof ears 213 and with the previously locked bolts.28 and 2: Under the influence of said engagement, the bolts wand 28. areretracted substantially to the position shown in Figure 6, therebyforcing the base 32 and the pins 35. and 31. into. a. corresponds inglyretracted position, said pins. slidably moving through the aperturesSBand 39; in the carriage 6.0 against. theaction oft springs in; and. 2.It is tobe noted that the carriageiihcannot movev under the influence ofthe. impact. above. dee scribed, because of its engagement; with trackwhich serves as a. stop: for holding: the. car.- riage againstsuchmovement; Inthisretracted. position, pins 3S. and 3.? extendbeyondthe; care riage it as clearly indicatedin. Figure 6;. there-,-being no obstruction whatsoever to said retract ing movement of thepins, particularly since; the.

' only possible obstructing element, the. boss; 51.,

contains the slot 61 therein which permits such rearward movement ofpin; 31.

It will be observed thatin the retracted position of the bolts 28. and29 as illustrated in. Figures. 6, and Z, the'guard extension 35.is;,movedrearwardly beyond the walltil; but since said guard. 35 extendssubstantially to wall 853, it constitutes an obstruction behind wall 34protecting the inner portion of the casing. Hence, although the opening33 still remains, uncovered, any wire. instrument inserted therethroughcannot, as aforesaid, pass guard 35 to disengage the tumbler :9, orotherwise affect the mechanism.

The operation is similar when the bolts are onlypartially closed, asshown in Figures 4 and 5. Here again the inadvertent closing of the doorwill cause the ears 2 5 and to engage the bolts 23 and 29, and cause aretraction thereof, and of the associated parts, precisely in the man.-ner described with'reference to Figure 6. It is to be observed thatparticularly in the case of such a partial closure of the bolts is thereconsiderable danger of mutilating the ends, since the cantilever supportof the bolts may more readily permit. a bending thereof that might occurthan when the bolts are in their fully locked positions. But with theconstruction of' my invention, since these bolts give with the closingmovement of the ears, the danger of any such bending or mutilation willbe obviously eliminated.

It should be noted that the spring 54 replaces the conventional wire orleaf spring for tumblers, said spring normally urging the tumbler intoits projected position shown in Figures 6 and '7, with the lip spacedfrom the floor 52 of the slot 5!. The arrangement is hence such thatthere is ample room to permit the lip to enter the slot 5| when it isoperatively actuated by arm 65 in the manner above described.

It will also be observed that in fabricating the carriage member at, itis a relatively simple matter to provide a drill fixture for boring theholes 13, 4t and 53, for the respective springs 4|, B2 and 54. Theconstruction is thus such as to provide a simple means for accommodatingthe most eifective and most easily assembled springs for the lockmechanism.

The mechanism above described, and the operation thereof; enable=Segaland similar type:- locks to be safely-employed in structures, such assliding door arrangements, where. there. is: danger of mutilating: ordestroying the boltsdue 5. to an inadvertent partial or full lockingthere of; Heretofore the avoidance of. such a. situation. was onlypossible with the less effective; spring. retractable latches; but itis. now possible, with. myinvention, to provide that safety feature with.10 the positive locking and unlocking. mechanism of the Segal type ofconstruction.

In the above: description, the invention has been disclosed merely byway of example and; in preferred manner; but obviously many varia- 15tions and modifications may be made therein.v It. isto be understood,therefore, that the invention is notli mi'ted' to. any specific form ormanner. of" practicing same', except insofar as such limitations-arespecified in the appended claims.

I claim:

1. In alock of the type having a casing witha.

plurality of spaced end loops and a coacting keeper: with ears adaptedfor interlocking engage! ment with said loops, bolt means transversely254 movable within the casing and into operative interlocking relationwith said keeper, said bolt means-being mounted in said casing for thelongitu'dinal movement, and spring means normally urging said bolt meansoutwardly in a longitu.-. dinal direction, said bolt. means beingmovable in Wardl'y in alongitudinal direction relative to the.

casing, against the action of said spring means, by external.forceapplied against said bolt means. in a longitudinal direction,regardless. of the. rela ative transverse positionof said bolt means,when said bolt means. is not interlocked with said keeper.

2. In a lock: of: the type having a casing with a plurality of spacedend loops and a ooacting inf-keeper with ears adapted. for interlockingengagement with said loops, bolt means transversely movable within thecasing and into operative interlocking. relation with said keeper, saidbolt means being also movable longitudinally relative to-the casingbetween two limiting positions, one being a maximum projected positionand the other amaximum retracted position, and spring means-urgingthebolt means towards said projectedposition.

keeper with ears adapted for interlocking engagement with said loops, alocking mechanism com-- prising spaced-bolts. movable transverselyrelative to the casing and through said loops and ears for interlockingthe casing and the keeper, a carriage mounted in said casing, meansholding said carriage against longitudinal movement relative 'to saidcasing, said carriage having a pair of spaced cavities extendingtherethrough in a longitudinal direction, said bolts being mounted on abase, spaced pins projecting rearwardly from said base and fittingwithin said cavities to permit said bolts to move longitudinallyrelative to the casing in a direction substantially normal to theoperative movement of the bolts through said loops and ears, and. springmeans urging said bolts outwardly into engagement with the outer ends ofsaid loops.

4. In a lock, the combination according to claim 1, further providedwith a carriage movable transversely within the casing, tumbler meanssupported by the carriage, and actuating means for the carriage andtumbler and adapted operatively to move the carriage transversely, the

3. In a lock of the type having a casing with aplurality ofspaced endloops and a coasting carriage being operatively connected to the boltmeans whereby the transverse movement of the former will move the lattertransversely.

5. In a lock, the combination according to claim 1, further providedwith a carriage movable transversely within the casing, said bolt meansincluding a base provided with a recess extending longitudinallyrelative to the casing, a bar extending from the carriage longitudinallyof the casing and in slidable engagement with said recess, whereby thetransverse movement of the carriage will cause the bar to move the boltmeans transversely.

6. In a lock, the combination according to claim 1, further providedwith a carriage movable transversely within the casing, said bolt meansincluding a base provided with a recess extending longitudinallyrelative to the casing, a bar extending from the carriage longitudinallyof the casing and in slidable engagement with said recess, whereby thetransverse movement of the carriage wfll cause the bar to move the boltmeans transversely, and longitudinal guide means aflixed to the boltmeans and in slidable engagement with the said carriage,

'7. In a lock, the combination according to claim 3, in which saidlocking mechanism includes a base slidably mounted within the casing,and arms extending outwardly from said base, said spaced bolts beingeach mounted on one of said arms, a recessed portion in said base, acarriage movable transversely within the casing, a bar extending fromthe carriage longitudinally of the casing and in slidable engagementwith said recessed portion, whereby the operative transverse movement ofthe carriage will move the bolts through said loops and ears.

8. In a lock, the combination according to claim 1, further providedwith a carriage movable transversely within the casing but held againstlongitudinal movement therein, the carriage having means projectingtherefrom into engagement with the bolt means whereby the movement ofthe former will actuate the latter, tumbler means supported by thecarriage, and actuating means for the carriage and tumbler and adaptedoperatively to move the carriage transversely, the carriage having acavity therein, a tumbler spring within the cavity, the tumbler having alip in yieldable engagement with the tumbler spring for yieldablyholding it in an operative locking position.

9. In a lock, the combination according to claim 1, further providedwith a carriage movable transversely within the casing, a bar extendingfrom the carriage longitudinally of the casing and in slidableengagement with the bolt means, whereby the transverse movement of thecarriage will cause the bar to move the bolt means transversely relativeto the casing, and longitudinal guide means afiixed to the bolt meansand in slidable engagement with the said carriage, further provided withtumbler means supported by the carriage, a boss for supporting asuitable cover plate for the casing and adapted for operative lockingengagement with the tumbler, said boss being partially disposed in thepath of said guide means, the boss being slotted to permit the saidguide means to move therepast.

10. In a lock of the type having a casing with a plurality of spaced endloops and a coacting keeper with ears adapted for interlockingengagement with said loops, a pair of parallel tracks mounted withinsaid casing and extending in a transverse direction relative thereto, acarriage mounted on said tracks for transverse movement relative to saidcasing, actuating means for moving said carriage on said tracks, saidcarriage having a plurality of apertures disposed longitudinally of saidcasing, a bolt base mounted in said casing forwardly of said carriage,said bolt base having a plurality of guide pins projecting rearwardlytherefrom in longitudinal alignment with said apertures, each of saidguide pins being slidable in the aperture with which it is aligned,spring means mounted on said guide pins exerting constant force againstsaid bolt base to urge said bolt base outwardly from said carriage in alongitudinal direction relative to said casing, a recess in said boltbase, said recess extending longitudinally relative to said casing, abar extending forwardly from said carriage into engagement with saidrecess, whereby transverse movement of said carriage is effective tomove said bolt base transversely of said carriage, a pair of armsextending forwardly from said bolt base, and a bolt mounted on each or"said arms, said bolts being normally held in vertical alignment withsaid end loops by pressure of said spring means against said bolt base.

SAMUEL SEGAL.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 1,373,353 Roden Mar. 29, 1921 1,404,556 Sprung Jan. 24, 19221,546,644 Freysinger July 21, 1944

